diff options
Diffstat (limited to 'platforms/arm_atsam')
| -rw-r--r-- | platforms/arm_atsam/gpio.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/platforms/arm_atsam/gpio.h b/platforms/arm_atsam/gpio.h index 915ed0ef4f..a42aaff54d 100644 --- a/platforms/arm_atsam/gpio.h +++ b/platforms/arm_atsam/gpio.h @@ -22,9 +22,9 @@ typedef uint8_t pin_t; -#define SAMD_PORT(pin) ((pin & 0x20) >> 5) -#define SAMD_PIN(pin) (pin & 0x1f) -#define SAMD_PIN_MASK(pin) (1 << (pin & 0x1f)) +#define SAMD_PORT(pin) (((pin)&0x20) >> 5) +#define SAMD_PIN(pin) ((pin)&0x1f) +#define SAMD_PIN_MASK(pin) (1 << ((pin)&0x1f)) #define setPinInput(pin) \ do { \ @@ -48,12 +48,16 @@ typedef uint8_t pin_t; PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.PULLEN = 1; \ } while (0) -#define setPinOutput(pin) \ +#define setPinOutputPushPull(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].DIRSET.reg = SAMD_PIN_MASK(pin); \ PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \ } while (0) +#define setPinOutputOpenDrain(pin) _Static_assert(0, "arm_atsam platform does not implement an open-drain output") + +#define setPinOutput(pin) setPinOutputPushPull(pin) + #define writePinHigh(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].OUTSET.reg = SAMD_PIN_MASK(pin); \ |